电波科学学报2011，Vol.26Issue(4)：735-744,10.
基于四阶累积量的共形阵列波达方向估计算法
DOA estimation algorithm for conformal array based on fourth-order cumulants
摘要
Abstract
The estimation of the source polarization always accompanied with the direction-of-arrival （DOA） estimation because of the polarization diversity of conformal array manifold. A blind DOA estimation method with polarization diversity is proposed in this paper taking account of the characteristic of conformal array antenna DOA estimation when the incident signals are assumed to be statistically independent non-Gaussian narrowband random processes. It is shown how the extended-array due to fourth-order cumulants of the array outputs and estimation of signal parameters via rotational invariance techniques （ESPRIT） algorithm to decouple the DOA and signal polarization parameters. The proposed method achieves high-resolution 2D DOA estimation without no source polarization and the element pattern. The new method has widely applications in a variety of conformal carriers such as cylindrical, conical and spherical carriers. The procedure is given and the mechanism is derived by taking cylindrical conformal array antenna as an example. Finally, Monte Carlo simulations are provided to illustrate the effectiveness of the proposed algorithm.关键词
共形阵列/波达方向估计/四阶累积量/旋转不变子空间算法Key words
conformal array/DOA estimation/Fourth-order cumulants/ESPRIT分类
信息技术与安全科学引用本文复制引用
齐子森,郭英,王布宏,王永良..基于四阶累积量的共形阵列波达方向估计算法[J].电波科学学报,2011,26(4):735-744,10.基金项目
国家自然科学基金 （）
陕西省自然科学基础研究计划 （）
空军工程大学电讯工程学院博士创新基金（No.200808）. （）
